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 #Pdfium Android( >= API Level 9 ) binding
-Use pdfium library from AOSP<br>
+Use pdfium library [from AOSP](https://android.googlesource.com/platform/external/pdfium/)<br>
 The demo app is [here](https://github.com/mshockwave/PdfiumAndroid-Demo-App)
 <h2>TODO:</h2><br>
     * Push to Maven Central
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